Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247877 | Pipe switch with spherical plug | — | 2001-06-19 |
| 5269638 | Spherical pipe switch with single channel or double channel cock | Martin Sindermann | 1993-12-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247877 | Pipe switch with spherical plug | — | 2001-06-19 |
| 5269638 | Spherical pipe switch with single channel or double channel cock | Martin Sindermann | 1993-12-14 |